Is there a matlab function similar to numpy.spacing

Question

Adam Stevens 2019-9-17

评论： Adam Stevens 2019-9-18

Is there a matlab function similar to numpy.spacing ?

John D'Errico 2019-9-17

It would be far easier to answer, if you actually told people what that code does in python. Even give an example.

Adam Stevens 2019-9-18

Well its a little hard to explain. I thought a google search would be easier.

It gives the difference between a number and the next clossest number depending on the precission being used.

Here is the documentation

It is used in scipy's DARE solution to check for stability.

Answer 1

James Tursa 2019-9-17

From the numpy.spacing doc:

"It can be considered as a generalization of EPS ... there should not be any representable number between x + spacing(x) and x for any finite x."

Sounds like the MATLAB function eps( ) is what you want.